Signal light for road construction machine



FIG. 1 is a front view of a signal light for a road construction machine showing my new design;

FIG. 2 is a left side view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top, front, left side perspective view thereof; and,

FIG. 8 is a top, rear, right side perspective view thereof.

The portions of the signal light for road construction shown in broken lines form no part of the claimed design. 

CLAIM The ornamental design for a signal light for a road construction machine, as shown and described. 